| Hem > $\alpha$-decay of neutron-deficient $^{200}$Fr and heavier neighbours |
| Article | |
| Title | $\alpha$-decay of neutron-deficient $^{200}$Fr and heavier neighbours |
| Author(s) | De Witte, H ; Andreyev A N ; Dean, S ; Franchoo, S ; Huyse, M ; Ivanov, O ; Köster, U ; Kurcewicz, W ; Kurpeta, J ; Plochocki, A ; Van Duppen, P ; Van de Vel, K ; Van de Walle, J |
| Affiliation | (Inst voor Kern- en Stralingsfysika, KU Leuven, Belgium) |
| Publication | 2005 |
| In: | Eur. Phys. J. A 23 (2005) 243-247 |
| DOI | 10.1140/epja/i2004-10077-9 |
| Subject category | Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN ISOLDE ; IS456 |
| Abstract | A new measurement of the $^{200}$Fr $\alpha$-decay half-life, with improved accuracy compared to previous measurements, has been carried out at the Isolde-CERN on-line mass separator. A half-life of 49(4) ms has been obtained, which is substantially different from earlier literature values. For the $^{196}$At daughter decay, a half-life of 389(54) ms and an $\alpha$- branching ratio $\alpha$=94(5)% were measured. In addition, the half-lives of $^{201,203,205}$Fr and $^{197,199}$At are reported. |